53427777533 has 8 divisors (see below), whose sum is σ = 57539497848. Its totient is φ = 49316327424.

The previous prime is 53427777521. The next prime is 53427777563. The reversal of 53427777533 is 33577772435.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 392911684 + 53034865849 = 19822^2 + 230293^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53427777533 - 2¹⁸ = 53427515389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53427777503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 557141 + ... + 645957.

It is an arithmetic number, because the mean of its divisors is an integer number (7192437231).

Almost surely, 2^53427777533 is an apocalyptic number.

It is an amenable number.

53427777533 is a deficient number, since it is larger than the sum of its proper divisors (4111720315).

53427777533 is a wasteful number, since it uses less digits than its factorization.

53427777533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135103.

The product of its digits is 12965400, while the sum is 53.

The spelling of 53427777533 in words is "fifty-three billion, four hundred twenty-seven million, seven hundred seventy-seven thousand, five hundred thirty-three".